JAMIE Cox has been given a ‘life-changing opportunity’ after securing entry to the World Boxing Super Series, according to his trainer John Costello.

The unbeaten Swindon southpaw is one of the three confirmed fighters in the eight-man knockout global tournament, joining WBA Super world champion George Groves and undefeated Swede Erik Skoglund.

Cox’s trainer Costello says that the former Walcot amateur will be going all out to lift the Muhammad Ali Trophy and prove that he is the best super-middleweight in the world.

“This is unbelievable for Jamie, it is a life-changing opportunity,” Costello told the Advertiser.

“We believe that he can win the tournament and prove why we have been talking about him as the best 12-stone fighter out there.”

The current WBA Continental champion, who will no longer face Rocky Fielding for the British title at the end of September, could potentially find himself fighting for a world title in his first bout in the tournament.

The Super Series will hold a draft next weekend in Monaco where Cox will discover who he will face in the quarter-finals in the autumn. The semi-finals are due to staged by the end of February, with the two remaining fighters then going toe-to-toe for the trophy in May.

The tournament, which is also being staged in the cruiserweight division, will have four seeded fighters, who will pick from the unseeded boxers to face in their opening contest.

“We are going over to Monaco for the draft,” Costello said. “Jamie won’t be one of the seeds, but that doesn’t matter.

“To be honest, we’d love George Groves first, but George won’t want to face Jamie in the first round.

“We don’t mind who we get. Once the draw is done, we can start focusing on that.”

Although the 2006 Commonwealth Games gold medallist will be considered an underdog for the tournament, Cox, who will now have a tune-up fight on Saturday night at the O2, is confident that he can shock the world.

“Maybe people will see me as the dark horse of the tournament. If that’s the case, I’m ready to cause a shock,” Cox said.

“I train very hard and I’ve done it in the gym before with top champions - now I’ve got the platform to do it on the world stage.

“Maybe they might take their eye off the prize when it comes to me. More fool them if they do because I’ll be training for every single fight like it is the final.”

His promoter Eddie Hearn, from Matchroom Boxing, added: “This is a great opportunity for Jamie to announce himself on the world stage and he shouldn’t be underestimated in this tournament.”